826770 - [B2G][FMRadio] Hardware Volume controls are not working 100% of the time when the screen is dark.

Status: VERIFIED DUPLICATE of bug 825635

(Firefox OS Graveyard :: General, defect)

Description

[Cody Roesch [:croesch]]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20100101 Firefox/17.0
Build ID: 20121128204232

Steps to reproduce:

1. Launch Unagi build 20130103070201 Version 18
2. Plug headphones into your device.
3. Launch FM Radio and verify that the volume changes as you use the Hardware Volume buttons and that it's reliable.
4. Now Press the power button so that the screen goes dark.
5. Again use the hardware volume buttons to try to change the volume of the FM Radio that's still playing.
6. You may notice that changing the volume can be very difficult to increase and decrease the volume.
7. The the screen back on and close the FM Radio app.
8. Launch the Music app now and play any song.
9. Press the power button so the screen goes dark.
10. Notice that the hardware volume buttons work just fine when listening to a song when you are trying to change the volume.

Repro 5/5 100% on multiple phones.


Actual results:

Hardware volume buttons are unreliable when playing FM Radio and the screen is dark.


Expected results:

Based on tests with other audio apps on the phone, it would seem to me that the volume buttons should work when the screen is active or the screen is dark.

Comment 1

[Cody Roesch [:croesch]]

Related bug
https://bugzilla.mozilla.org/show_bug.cgi?id=796770

Comment 2

[Randy Lin [:rlin] - Be Mozillian on 2015/01/26]

Related bug: 
https://bugzilla.mozilla.org/show_bug.cgi?id=825635

Comment 4

[mdaniloff]

Tested on Unagi build #20130211070202

This is a duplicate of bug #825635